Results 51 to 60 of about 345 (137)

An In‐Depth Analysis of Liquid Level Measurement Techniques and Performance Evaluation Using Computational Fluid Dynamics

Journal of Sensors, Volume 2025, Issue 1, 2025.
Liquid level measurement (LLM) systems are extensively used in industry. Although most liquid measurement systems are based on indirect measurement, flow‐based monitoring is the most used secondary measuring technique for LLM. A comprehensive review of the existing LLM techniques including optical, image‐based, capacitive, and float sensors is ...
Vighnesh Shenoy, Santhosh Krishnan Venkata, Sivakumar Poruran   +2 more
wiley   +1 more source

Bending Direction Detective Fiber Sensor for Dual-Parameter Sensing Based on an Asymmetrical Thin-Core Long-Period Fiber Grating

IEEE Photonics Journal, 2016
An asymmetrical thin-core long-period fiber grating (ATC-LPFG) cascaded with an inline Mach–Zehnder interferometer (MZI) for dual-parameter sensing has been demonstrated. In addition, bending direction is also determined at the same time.
Wenjun Ni, Ping Lu, Chao Luo, Xin Fu, Li Liu, Hao Liao, Xinyue Jiang, Deming Liu, Jiangshan Zhang   +8 more
doaj   +1 more source

Advances in Plasmonic Photonic Crystal Fiber Biosensors: Exploring Innovative Materials for Bioimaging and Environmental Monitoring

ChemistrySelect, Volume 9, Issue 28, July 26, 2024.
This paper explores advancements in plasmonic photonic crystal fiber biosensors, emphasizing their roles in bioimaging and environmental monitoring. It discusses integrating plasmonic materials like graphene, TMDCs, and black phosphorus into fiber biosensors, enhancing sensitivity and functionality.
Sareh Vatani, Jeshurun Biney, Vahid Faramarzi, Ghassan Jabbour, Jeongwon Park   +4 more
wiley   +1 more source

Study on optimization of nano-coatings for ultra-sensitive biosensors based on long-period fiber grating

Sensing and Bio-Sensing Research, 2020
Bio-chemical sensors are expected to offer high sensitivity and specificity towards the detection of an analyte. It has been found that optical sensors based on long period fiber gratings (LPFGs) meet most of these requirements, particularly when coated ...
Sankhyabrata Bandyopadhyay, Liyang Shao, Chao Wang, Shuaiqi Liu, Qiang Wu, Guoqiang Gu, Jie Hu, Yanjun Liu, Xiaolong Chen, Zhangqi Song, Xuefeng Song, Qiaoliang Bao, Mateusz Smietana   +12 more
doaj   +1 more source

Sensing characteristics of a metal film coated long-period fiber grating

Journal of Measurement Science and Instrumentation, 2017
To obtain the influence rules of the coating parameters of a long-period fiber grating（LPFG）with respect to temperature,strain and refractive index sensing properties,based on the mode coupling theory,a strict four-layer theorietical model of a metal ...
WANG Yan, LIU Jia-ping, LIU Ji-hong, HU Xing-liu, FANG Ting   +4 more
doaj  

Long Period Fiber Gratings Inscribed With an Improved Two-Dimensional Scanning Technique

IEEE Photonics Journal, 2014
We demonstrated a promising CO2 laser irradiation system based on an improved 2-D scanning technique. Such a system could be used to inscribe high-quality long period fiber gratings (LPFGs) with good reproducibility of grating inscription, which ...
Xiaoyong Zhong, Yiping Wang, Changrui Liao, Guolu Yin, Jiangtao Zhou, Guanjun Wang, Bing Sun, Jian Tang   +7 more
doaj   +1 more source

Fiber Grating Hydrogen Sensor: Progress, Challenge and Prospect

Advanced Sensor Research, Volume 3, Issue 2, February 2024.
This review focuses on the fiber grating hydrogen sensor which depicts a great promising for the industrial application, and mainly introduces the design and optimization methods for the sensor from sensor structure, hydrogen‐sensitive material and sensor durability perspectives, which is expected to provide some new ideas for its practical ...
Xiaofan Ping, Xi Cao, Chuanzhao Cao, Haodong Lei, Chaoran Yang, Qian Cheng, Tianyi Zhou, Mingyi Liu   +7 more
wiley   +1 more source

Highly Sensitive Two-Axis Bending Sensor Based on Arc-Induced Long Period Fiber Grating in Dual Side-Hole Fiber

IEEE Photonics Journal, 2018
A highly sensitive two-axis bending sensor based on long period fiber grating (LPFG) in a dual side-hole fiber (DSHF) is presented and experimentally investigated.
Yang Ouyang, Huiyong Guo, Xiaowei Ouyang, Xiaofeng Xu, Ciming Zhou, Ai Zhou   +5 more
doaj   +1 more source

An Optical Fiber Sensor and Its Application in UAVs for Current Measurements

Sensors, 2016
In this paper, we propose and experimentally investigate an optical sensor based on a novel combination of a long-period fiber grating (LPFG) with a permanent magnet to measure electrical current in unmanned aerial vehicles (UAVs).
Felipe S. Delgado, João P. Carvalho, Thiago V. N. Coelho, Alexandre B. Dos Santos   +3 more
doaj   +1 more source

Sensitivity Enhancement in Low Cutoff Wavelength Long-Period Fiber Gratings by Cladding Diameter Reduction

Sensors, 2017
The diameter of long-period fiber gratings (LPFGs) fabricated in optical fibers with a low cutoff wavelength was be reduced by hydrofluoric acid etching, enhancing the sensitivity to refractive index by more than a factor of 3, to 2611 nm/refractive ...
Ignacio Del Villar, Matthew Partridge, Wenceslao Eduardo Rodriguez, Omar Fuentes, Abian Bentor Socorro, Silvia Diaz, Jesus Maria Corres, Stephen Wayne James, Ralph Peter Tatam   +8 more
doaj   +1 more source